Ground Resistance Measurement [250.53(A)(2), 2020 NEC]

250.53(A)(2) Ground Resistance Measurement – https://www.MikeHolt.com/bonding. NEC 250.53(A)(2) requires that a single grounding electrode be supplemented by an additional electrode but, is that always the case? Learn the exceptions as well as what qualifies as a supplemental electrode as our panel of experts discuss this topic.